# INDUCTOR POWER, 7UH, 4.5A, SMD

![Product image](https://novapart.co/image/farnell:1836303/)

**URL**: https://novapart.co/products/DR1040-7R0-R/inductor-power-7uh-45a-smd
**SKU**: DR1040-7R0-R
**Manufacturer**: EATON ELECTRONICS
**Category**: Passive Components || Inductors || Power Inductors || SMD Power Inductors
**Price**: €1.0400
**Stock**: 10+
**Lead Time**: 22 days (indicative)

## Description

Product Range:COILTRONICS - DR1040 Series SMD Shielded Inductors; Inductance:7µH; Inductance Tolerance:(Not Available); DC Resistance Max:0.02ohm; DC Current Rating:4.5A;

## Specifications

| Parameter | Value |
|---|---|
| Inductance | 7µH |
| Product Range | DR1040 Series |
| Product Width | 10.3mm |
| Product Height | 4mm |
| Product Length | 10.5mm |
| Dc Resistance Max | 0.02ohm |
| Rms Current (Irms) | 4.5A |
| Power Inductor Case | 10.5mm x 10.3mm x 4mm |
| Inductance Tolerance | ± 30% |
| Inductor Construction | Shielded |
| Inductor Case / Package | - |
| Saturation Current (Isat) | 4.8A |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:1836303/)

Effective April 2016 Supersedes March 2007 

Technical Data **4147** 

## DR1040 Shielded power inductors 

## **Applications** 

- LED/LCD backlighting 

- High definition televisions (HDTV) 

- Server and desktop power supplies 

- Portable electronics 

- Graphics cards and battery powered systems 

- Point-of-load (POL) modules 

- Printers and peripherals 

## **Environmental Data** 

- Storage temperature range (Component): 

- -40 °C to +125 °C 

## **Description** 

- Shielded drum core 

- Inductance range from 1.4 μH to 323 μH 

- Current range from 0.52 A to 10 A 

- 10.5 mm x 10.3 mm footprint surface mount package in a 4.0 mm height 

- Operating temperature range: -40 °C to +125 °C (ambient plus self-temperature rise) 

- Solder reflow temperature: J-STD-020D compliant 

**HALOGEN Pb HF FREE** 

- Ferrite core material 

- Halogen free, lead free, RoHS compliant 

DR1040 Shielded power inductors 

Technical Data 4147 Effective April 2016 

## **Product Specifications** 

|||||**DCR (m**Ω**)**|**DCR (m**Ω**)**||
|---|---|---|---|---|---|---|
||**OCL1**|**Irms**<br>**2**|**Isat**<br>**2**|**typical**|**maximum**||
|**Part Number5**|**(μH) ±30%**|**(A)**|**(A)**|**@ 20°C**|**@ 20°C**|**K-factor4**|
|DR1040-1R5-R|1.35|6.5|10|6.0|8.1|15.5|
|DR1040-2R5-R|2.4|6.1|7.8|7.0|9.0|12.0|
|DR1040-3R8-R|3.6|5.5|6.4|9.6|13|9.9|
|DR1040-5R2-R|5.2|5.4|5.5|14|17|8.3|
|DR1040-7R0-R|6.8|4.5|4.8|17|20|7.2|
|DR1040-8R2-R|8.1|3.98|4.6|24|29|6.4|
|DR1040-100-R|9.6|3.8|4.4|26|35|5.7|
|DR1040-150-R|14.9|3.1|3.6|37|50|4.7|
|DR1040-220-R|21.1 ±20%|2.5|2.9|54|73|4.0|
|DR1040-330-R|32.6|2.2|2.45|69|93|3.3|
|DR1040-470-R|45.8|1.9|2.1|95|128|2.8|
|DR1040-680-R|65.3|1.42|1.65|152|183|2.3|
|DR1040-820-R|87|1.29|1.47|214|260|2.0|
|DR1040-101-R|101|1.25|1.35|225|304|1.9|
|DR1040-151-R|148|0.85|1.15|356|430|1.6|
|DR1040-221-R|216|0.70|0.92|530|640|1.3|
|DR1040-331-R|323|0.52|0.70|810|1090|1.0|



1. Open Circuit Inductance (OCL) Test Parameters: 100 kHz, 0.25 Vrms, 0.0 Adc, +25 ºC 

2. Irms: DC current for an approximate temperature rise of 30 ºC without core loss. Derating is necessary for AC currents. PCB layout, trace thickness and width, air-flow, and proximity of other heat generating components will affect the temperature rise. It is recommended that the temperature of the part not exceed 125 ºC under worst case operating conditions verified in the end application. 

3. Isat: Peak current for approximately 35% rolloff @ +25 ºC 

4. K-factor: K-factor: Used to determine Bp-p for core loss (see graph). Bp-p = K * L * ΔI. Bp-p: (mT), K: 

- (K-factor from table), L: (Inductance in μH), ΔI (Peak to peak ripple current in Amps).. 

5. Part Number Definition: DR1040-xxx-R 

- DR1040 = Product code and size 

- -xxx= inductance value in μH, R= decimal point, 

- If no R is present then last character equals number of zeros 

- -R suffix = RoHS compliant 

## **Dimensions (mm)** 

**==> picture [491 x 117] intentionally omitted <==**

Part marking: inductance value in uH. R = decimal point. If no R is present then last character equals number of zeroes. wwlly = date code, R = revision level 

Do not route traces or vias underneath the inductor 

www.eaton.com/elx 

2 

DR1040 Shielded power inductors 

Technical Data 4147 Effective April 2016 

## **Packaging information (mm)** 

Supplied in tape and reel packaging , 850 parts per 13” diameter reel 

**==> picture [439 x 173] intentionally omitted <==**

## **Temperature rise vs. total loss** 

**==> picture [401 x 197] intentionally omitted <==**

**----- Start of picture text -----**<br>
120<br>100<br>80<br>60<br>40<br>20<br>0<br>0 0.2 0.4 0.6 0.8 1 1.2<br>Total Loss (W)<br>)<br>Temperature Rise (<br>**----- End of picture text -----**<br>


www.eaton.com/elx 

3 

DR1040 Shielded power inductors 

Technical Data 4147 Effective April 2016 

## **Core loss vs. Bp-p** 

**==> picture [371 x 259] intentionally omitted <==**

**----- Start of picture text -----**<br>
1 MHz 500 kHz<br>10 300 kHz<br>200 kHz<br>100 kHz<br>1<br>0.1<br>0.01<br>0.001<br>1 10 100 1000<br>Bp-p (mT)<br>Core Loss (W)<br>**----- End of picture text -----**<br>


## **Inductance characteristics** 

**==> picture [377 x 245] intentionally omitted <==**

**----- Start of picture text -----**<br>
%OCL vs. Isat<br>120%<br>100%<br>80%<br>60%<br>40%<br>-40 °C<br>+25 °C<br>+85 °C<br>20%<br>0%<br>0% 20% 40% 60% 80% 100% 120% 140% 160%<br>% of Isat<br>% of OCL<br>**----- End of picture text -----**<br>


www.eaton.com/elx 

4 

DR1040 Shielded power inductors 

Technical Data 4147 Effective April 2016 

## **Solder reflow profile** 

**==> picture [536 x 183] intentionally omitted <==**

**----- Start of picture text -----**<br>
TP TC -5°C Table 1 - Standard SnPb Solder (Tc)<br>Max. Ramp Up Rate = 3°C/s tP Volume   Volume<br>Package   mm3   mm3<br>Max. Ramp Down Rate = 6°C/s Thickness <350 ≥ 350<br>TL <2.5mm) 235°C 220°C<br>Preheat t ≥2.5mm 220°C 220°C<br>A<br>Tsmax<br>Table 2 - Lead (Pb) Free Solder (Tc)<br>Volume   Volume   Volume<br>Tsmin Package   mm [3] mm [3] mm [3]<br>   ts Thickness <350 350 - 2000 >2000<br><1.6mm 260°C 260°C 260°C<br>1.6 – 2.5mm 260°C 250°C 245°C<br>>2.5mm 250°C 245°C 245°C<br>25°C<br>Time 25°C to Peak  Time<br>Temperature<br>**----- End of picture text -----**<br>


|**Package**<br>**Thickness**||**Volume**<br>**mm3**<br>**<350**||**Volume**<br>**mm3**<br>**350 - 2000**||**Volume**<br>**mm3**<br>**>2000**|
|---|---|---|---|---|---|---|
|<1.6mm||260°C||260°C||260°C|
|1.6 – 2.5mm||260°C||250°C||245°C|
|>2.5mm||250°C||245°C||245°C|



## **Reference JDEC J-STD-020D** 

|**Profile Feature**||**Standard SnPb Solder**||**Lead (Pb) Free Solder**|
|---|---|---|---|---|
|Preheat and Soak     • Temperature min. (Tsmin)||100°C||150°C|
|• Temperature max. (Tsmax)||150°C||200°C|
|• Time (Tsmin to Tsmax) (ts)||60-120 Seconds||60-120 Seconds|
|Average ramp up rate Tsmax to Tp||3°C/ Second Max.||3°C/ Second Max.|
|Liquidous temperature (Tl)||183°C||217°C|
|Time at liquidous (tL)||60-150 Seconds||60-150 Seconds|
|Peak package body temperature (TP)*||Table 1||Table 2|
|Time (tp)** within 5 °C of the specified classification temperature (Tc)||20 Seconds**||30 Seconds**|
|Average ramp-down rate (Tpto Tsmax)||6°C/ Second Max.||6°C/ Second Max.|
|Time 25°C to Peak Temperature||6 Minutes Max.||8 Minutes Max.|



* Tolerance for peak profile temperature (Tp) is defined as a supplier minimum and a user maximum. 

** Tolerance for time at peak profile temperature (tp) is defined as a supplier minimum and a user maximum. 

Life Support Policy: Eaton does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. 

Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Eaton also reserves the right to change or update, without notice, any technical information contained in this bulletin. 

## **Eaton** 

**Electronics Division** 1000 Eaton Boulevard Cleveland, OH 44122 United States www.eaton.com/elx © 2016 Eaton All Rights Reserved Printed in USA Publication No. 4147 April 2016 

Eaton is a registered trademark. All other trademarks are property of their respective owners. 



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- [Supplier page](https://es.farnell.com/eaton-electronics/dr1040-7r0-r/inductor-power-7uh-4-5a-smd/dp/1836303)
---

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